package net.sourceforge.jweb.json;

import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * A JSONObject is an unordered collection of name/value pairs. Its external
 * form is a string wrapped in curly braces with colons between the names and
 * values, and commas between the values and names. The internal form is an
 * object having <code>get</code> and <code>opt</code> methods for accessing the
 * values by name, and <code>put</code> methods for adding or replacing values
 * by name. The values can be any of these types: <code>Boolean</code>,
 * <code>JSONArray</code>, <code>JSONObject</code>, <code>Number</code>,
 * <code>String</code>, or the <code>JSONObject.NULL</code> object. A JSONObject
 * constructor can be used to convert an external form JSON text into an
 * internal form whose values can be retrieved with the <code>get</code> and
 * <code>opt</code> methods, or to convert values into a JSON text using the
 * <code>put</code> and <code>toString</code> methods. A <code>get</code> method
 * returns a value if one can be found, and throws an exception if one cannot be
 * found. An <code>opt</code> method returns a default value instead of throwing
 * an exception, and so is useful for obtaining optional values.
 * <p>
 * The generic <code>get()</code> and <code>opt()</code> methods return an
 * object, which you can cast or query for type. There are also typed
 * <code>get</code> and <code>opt</code> methods that do type checking and type
 * coersion for you.
 * <p>
 * The <code>put</code> methods adds values to an object. For example,
 * 
 * <pre>
 * myString = new JSONObject().put("JSON", "Hello, World!").toString();
 * </pre>
 * 
 * produces the string <code>{"JSON": "Hello, World"}</code>.
 * <p>
 * The texts produced by the <code>toString</code> methods strictly conform to
 * the JSON sysntax rules. The constructors are more forgiving in the texts they
 * will accept:
 * <ul>
 * <li>An extra <code>,</code>&nbsp;<small>(comma)</small> may appear just
 * before the closing brace.</li>
 * <li>Strings may be quoted with <code>'</code>&nbsp;<small>(single
 * quote)</small>.</li>
 * <li>Strings do not need to be quoted at all if they do not begin with a quote
 * or single quote, and if they do not contain leading or trailing spaces, and
 * if they do not contain any of these characters:
 * <code>{ } [ ] / \ : , = ; #</code> and if they do not look like numbers and
 * if they are not the reserved words <code>true</code>, <code>false</code>, or
 * <code>null</code>.</li>
 * <li>Keys can be followed by <code>=</code> or <code>=></code> as well as by
 * <code>:</code>.</li>
 * <li>Values can be followed by <code>;</code> <small>(semicolon)</small> as
 * well as by <code>,</code> <small>(comma)</small>.</li>
 * <li>Numbers may have the <code>0-</code> <small>(octal)</small> or
 * <code>0x-</code> <small>(hex)</small> prefix.</li>
 * <li>Comments written in the slashshlash, slashstar, and hash conventions will
 * be ignored.</li>
 * </ul>
 * 
 * @author JSON.org
 * @version 2
 */
public class JSONObject extends JSONElement {
	private boolean asPrimary;
	/**
	 * JSONObject.NULL is equivalent to the value that JavaScript calls null, whilst
	 * Java's null is equivalent to the value that JavaScript calls undefined.
	 */
	private static final class Null {

		/**
		 * There is only intended to be a single instance of the NULL object, so the
		 * clone method returns itself.
		 * 
		 * @return NULL.
		 */
		protected final Object clone() {
			return this;
		}

		/**
		 * A Null object is equal to the null value and to itself.
		 * 
		 * @param object
		 *            An object to test for nullness.
		 * @return true if the object parameter is the JSONObject.NULL object or null.
		 */
		public boolean equals(Object object) {
			return object == null || object == this;
		}

		public int hashCode() {
			return 1;
		}

		/**
		 * Get the "null" string value.
		 * 
		 * @return The string "null".
		 */
		public String toString() {
			return "null";
		}
	}

	/**
	 * The hash map where the JSONObject's properties are kept.
	 */
	private HashMap<String, Object> myHashMap;

	/**
	 * It is sometimes more convenient and less ambiguous to have a
	 * <code>NULL</code> object than to use Java's <code>null</code> value.
	 * <code>JSONObject.NULL.equals(null)</code> returns <code>true</code>.
	 * <code>JSONObject.NULL.toString()</code> returns <code>"null"</code>.
	 */
	public static final Object NULL = new Null();

	/**
	 * Construct an empty JSONObject.
	 */
	public JSONObject() {
		this.myHashMap = new LinkedHashMap<String, Object>();
	}

	/**
	 * Construct a JSONObject from a subset of another JSONObject. An array of
	 * strings is used to identify the keys that should be copied. Missing keys are
	 * ignored.
	 * 
	 * @param jo
	 *            A JSONObject.
	 * @param sa
	 *            An array of strings.
	 * @exception JSONException
	 *                If a value is a non-finite number.
	 */
	public JSONObject(JSONObject jo, String[] sa) throws JSONException {
		this();
		for (int i = 0; i < sa.length; i += 1) {
			putOpt(sa[i], jo.opt(sa[i]));
		}
	}

	/**
	 * Construct a JSONObject from a JSONTokener.
	 * 
	 * @param x
	 *            A JSONTokener object containing the source string.
	 * @throws JSONException
	 *             If there is a syntax error in the source string.
	 */
	public JSONObject(JSONTokener x) throws JSONException {
		this();
		char c;
		String key;

		if (x.nextClean() != '{') {
			throw x.syntaxError("A JSONObject text must begin with '{'");
		}
		for (;;) {
			c = x.nextClean();
			switch (c) {
			case 0:
				throw x.syntaxError("A JSONObject text must end with '}'");
			case '}':
				return;
			default:
				x.back();
				key = x.nextValue().toString();
			}

			/*
			 * The key is followed by ':'. We will also tolerate '=' or '=>'.
			 */

			c = x.nextClean();
			if (c == '=') {
				if (x.next() != '>') {
					x.back();
				}
			} else if (c != ':') {
				throw x.syntaxError("Expected a ':' after a key");
			}
			this.myHashMap.put(key, x.nextValue());

			/*
			 * Pairs are separated by ','. We will also tolerate ';'.
			 */

			switch (x.nextClean()) {
			case ';':
			case ',':
				if (x.nextClean() == '}') {
					return;
				}
				x.back();
				break;
			case '}':
				return;
			default:
				throw x.syntaxError("Expected a ',' or '}'");
			}
		}
	}

	/**
	 * Construct a JSONObject from a Map.
	 * 
	 * @param map
	 *            A map object that can be used to initialize the contents of the
	 *            JSONObject.
	 */
	public JSONObject(Map<String, Object> map) {
		this.myHashMap = new HashMap<String, Object>(map);
	}

	/**
	 * Construct a JSONObject from a string. This is the most commonly used
	 * JSONObject constructor.
	 * 
	 * @param string
	 *            A string beginning with <code>{</code>&nbsp;<small>(left
	 *            brace)</small> and ending with <code>}</code>&nbsp;<small>(right
	 *            brace)</small>.
	 * @exception JSONException
	 *                If there is a syntax error in the source string.
	 */
	public JSONObject(String string) throws JSONException {
		this(new JSONTokener(string));
	}

	/**
	 * Accumulate values under a key. It is similar to the put method except that if
	 * there is already an object stored under the key then a JSONArray is stored
	 * under the key to hold all of the accumulated values. If there is already a
	 * JSONArray, then the new value is appended to it. In contrast, the put method
	 * replaces the previous value.
	 * 
	 * @param key
	 *            A key string.
	 * @param value
	 *            An object to be accumulated under the key.
	 * @return this.
	 * @throws JSONException
	 *             If the value is an invalid number or if the key is null.
	 */
	public JSONObject accumulate(String key, Object value) throws JSONException {
		testValidity(value);
		Object o = opt(key);
		if (o == null) {
			put(key, value);
		} else if (o instanceof JSONArray) {
			((JSONArray) o).put(value);
		} else {
			put(key, new JSONArray().put(o).put(value));
		}
		return this;
	}

	/**
	 * Get the value object associated with a key.
	 *
	 * @param key
	 *            A key string.
	 * @return The object associated with the key.
	 * @throws JSONException
	 *             if the key is not found.
	 */
	public Object get(String key) throws JSONException {
		Object o = opt(key);
		if (o == null) {
			throw new JSONException("JSONObject[" + (key) + "] not found.");
		}
		return o;
	}

	/**
	 * Get the boolean value associated with a key.
	 *
	 * @param key
	 *            A key string.
	 * @return The truth.
	 * @throws JSONException
	 *             if the value is not a Boolean or the String "true" or "false".
	 */
	public boolean getBoolean(String key) throws JSONException {
		Object o = get(key);
		if (o.equals(Boolean.FALSE) || (o instanceof String && ((String) o).equalsIgnoreCase("false"))) {
			return false;
		} else if (o.equals(Boolean.TRUE) || (o instanceof String && ((String) o).equalsIgnoreCase("true"))) {
			return true;
		}
		throw new JSONException("JSONObject[" + (key) + "] is not a Boolean.");
	}

	/**
	 * Get the double value associated with a key.
	 * 
	 * @param key
	 *            A key string.
	 * @return The numeric value.
	 * @throws JSONException
	 *             if the key is not found or if the value is not a Number object
	 *             and cannot be converted to a number.
	 */
	public double getDouble(String key) throws JSONException {
		Object o = get(key);
		try {
			return o instanceof Number ? ((Number) o).doubleValue() : Double.parseDouble((String) o);
		} catch (Exception e) {
			throw new JSONException("JSONObject[" + (key) + "] is not a number.");
		}
	}

	/**
	 * Get the int value associated with a key. If the number value is too large for
	 * an int, it will be clipped.
	 *
	 * @param key
	 *            A key string.
	 * @return The integer value.
	 * @throws JSONException
	 *             if the key is not found or if the value cannot be converted to an
	 *             integer.
	 */
	public int getInt(String key) throws JSONException {
		Object o = get(key);
		return o instanceof Number ? ((Number) o).intValue() : (int) getDouble(key);
	}

	/**
	 * Get the JSONArray value associated with a key.
	 *
	 * @param key
	 *            A key string.
	 * @return A JSONArray which is the value.
	 * @throws JSONException
	 *             if the key is not found or if the value is not a JSONArray.
	 */
	public JSONArray getJSONArray(String key) throws JSONException {
		Object o = get(key);
		if (o instanceof JSONArray) {
			return (JSONArray) o;
		}
		throw new JSONException("JSONObject[" + (key) + "] is not a JSONArray.");
	}

	/**
	 * Get the JSONObject value associated with a key.
	 *
	 * @param key
	 *            A key string.
	 * @return A JSONObject which is the value.
	 * @throws JSONException
	 *             if the key is not found or if the value is not a JSONObject.
	 */
	public JSONObject getJSONObject(String key) throws JSONException {
		Object o = get(key);
		if (o instanceof JSONObject) {
			return (JSONObject) o;
		}
		throw new JSONException("JSONObject[" + (key) + "] is not a JSONObject.");
	}

	/**
	 * Get the long value associated with a key. If the number value is too long for
	 * a long, it will be clipped.
	 *
	 * @param key
	 *            A key string.
	 * @return The long value.
	 * @throws JSONException
	 *             if the key is not found or if the value cannot be converted to a
	 *             long.
	 */
	public long getLong(String key) throws JSONException {
		Object o = get(key);
		return o instanceof Number ? ((Number) o).longValue() : (long) getDouble(key);
	}

	/**
	 * Get the string associated with a key.
	 *
	 * @param key
	 *            A key string.
	 * @return A string which is the value.
	 * @throws JSONException
	 *             if the key is not found.
	 */
	public String getString(String key) throws JSONException {
		return get(key).toString();
	}

	/**
	 * Determine if the JSONObject contains a specific key.
	 * 
	 * @param key
	 *            A key string.
	 * @return true if the key exists in the JSONObject.
	 */
	public boolean has(String key) {
		return this.myHashMap.containsKey(key);
	}

	/**
	 * Determine if the value associated with the key is null or if there is no
	 * value.
	 * 
	 * @param key
	 *            A key string.
	 * @return true if there is no value associated with the key or if the value is
	 *         the JSONObject.NULL object.
	 */
	public boolean isNull(String key) {
		return JSONObject.NULL.equals(opt(key));
	}

	/**
	 * Get an enumeration of the keys of the JSONObject.
	 *
	 * @return An iterator of the keys.
	 */
	public Iterator<String> keys() {
		return this.myHashMap.keySet().iterator();
	}

	/**
	 * Get the number of keys stored in the JSONObject.
	 *
	 * @return The number of keys in the JSONObject.
	 */
	public int length() {
		return this.myHashMap.size();
	}

	/**
	 * Produce a JSONArray containing the names of the elements of this JSONObject.
	 * 
	 * @return A JSONArray containing the key strings, or null if the JSONObject is
	 *         empty.
	 */
	public JSONArray names() {
		JSONArray ja = new JSONArray();
		Iterator<String> keys = keys();
		while (keys.hasNext()) {
			ja.put(keys.next());
		}
		return ja.length() == 0 ? null : ja;
	}

	/**
	 * Produce a string from a number.
	 * 
	 * @param n
	 *            A Number
	 * @return A String.
	 * @throws JSONException
	 *             If n is a non-finite number.
	 */
	static public String numberToString(Number n) throws JSONException {
		if (n == null) {
			throw new JSONException("Null pointer");
		}
		testValidity(n);

		// Shave off trailing zeros and decimal point, if possible.

		String s = n.toString();
		if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) {
			while (s.endsWith("0")) {
				s = s.substring(0, s.length() - 1);
			}
			if (s.endsWith(".")) {
				s = s.substring(0, s.length() - 1);
			}
		}
		return s;
	}

	/**
	 * Get an optional value associated with a key.
	 * 
	 * @param key
	 *            A key string.
	 * @return An object which is the value, or null if there is no value.
	 */
	public Object opt(String key) {
		return key == null ? null : this.myHashMap.get(key);
	}

	/**
	 * Get an optional boolean associated with a key. It returns false if there is
	 * no such key, or if the value is not Boolean.TRUE or the String "true".
	 *
	 * @param key
	 *            A key string.
	 * @return The truth.
	 */
	public boolean optBoolean(String key) {
		return optBoolean(key, false);
	}

	/**
	 * Get an optional boolean associated with a key. It returns the defaultValue if
	 * there is no such key, or if it is not a Boolean or the String "true" or
	 * "false" (case insensitive).
	 *
	 * @param key
	 *            A key string.
	 * @param defaultValue
	 *            The default.
	 * @return The truth.
	 */
	public boolean optBoolean(String key, boolean defaultValue) {
		try {
			return getBoolean(key);
		} catch (Exception e) {
			return defaultValue;
		}
	}

	/**
	 * Get an optional double associated with a key, or NaN if there is no such key
	 * or if its value is not a number. If the value is a string, an attempt will be
	 * made to evaluate it as a number.
	 *
	 * @param key
	 *            A string which is the key.
	 * @return An object which is the value.
	 */
	public double optDouble(String key) {
		return optDouble(key, Double.NaN);
	}

	/**
	 * Get an optional double associated with a key, or the defaultValue if there is
	 * no such key or if its value is not a number. If the value is a string, an
	 * attempt will be made to evaluate it as a number.
	 *
	 * @param key
	 *            A key string.
	 * @param defaultValue
	 *            The default.
	 * @return An object which is the value.
	 */
	public double optDouble(String key, double defaultValue) {
		try {
			Object o = opt(key);
			return o instanceof Number ? ((Number) o).doubleValue() : new Double((String) o).doubleValue();
		} catch (Exception e) {
			return defaultValue;
		}
	}

	/**
	 * Get an optional int value associated with a key, or zero if there is no such
	 * key or if the value is not a number. If the value is a string, an attempt
	 * will be made to evaluate it as a number.
	 *
	 * @param key
	 *            A key string.
	 * @return An object which is the value.
	 */
	public int optInt(String key) {
		return optInt(key, 0);
	}

	/**
	 * Get an optional int value associated with a key, or the default if there is
	 * no such key or if the value is not a number. If the value is a string, an
	 * attempt will be made to evaluate it as a number.
	 *
	 * @param key
	 *            A key string.
	 * @param defaultValue
	 *            The default.
	 * @return An object which is the value.
	 */
	public int optInt(String key, int defaultValue) {
		try {
			return getInt(key);
		} catch (Exception e) {
			return defaultValue;
		}
	}

	/**
	 * Get an optional JSONArray associated with a key. It returns null if there is
	 * no such key, or if its value is not a JSONArray.
	 *
	 * @param key
	 *            A key string.
	 * @return A JSONArray which is the value.
	 */
	public JSONArray optJSONArray(String key) {
		Object o = opt(key);
		return o instanceof JSONArray ? (JSONArray) o : null;
	}

	/**
	 * Get an optional JSONObject associated with a key. It returns null if there is
	 * no such key, or if its value is not a JSONObject.
	 *
	 * @param key
	 *            A key string.
	 * @return A JSONObject which is the value.
	 */
	public JSONObject optJSONObject(String key) {
		Object o = opt(key);
		return o instanceof JSONObject ? (JSONObject) o : null;
	}

	/**
	 * Get an optional long value associated with a key, or zero if there is no such
	 * key or if the value is not a number. If the value is a string, an attempt
	 * will be made to evaluate it as a number.
	 *
	 * @param key
	 *            A key string.
	 * @return An object which is the value.
	 */
	public long optLong(String key) {
		return optLong(key, 0);
	}

	/**
	 * Get an optional long value associated with a key, or the default if there is
	 * no such key or if the value is not a number. If the value is a string, an
	 * attempt will be made to evaluate it as a number.
	 *
	 * @param key
	 *            A key string.
	 * @param defaultValue
	 *            The default.
	 * @return An object which is the value.
	 */
	public long optLong(String key, long defaultValue) {
		try {
			return getLong(key);
		} catch (Exception e) {
			return defaultValue;
		}
	}

	/**
	 * Get an optional string associated with a key. It returns an empty string if
	 * there is no such key. If the value is not a string and is not null, then it
	 * is coverted to a string.
	 *
	 * @param key
	 *            A key string.
	 * @return A string which is the value.
	 */
	public String optString(String key) {
		return optString(key, "");
	}

	/**
	 * Get an optional string associated with a key. It returns the defaultValue if
	 * there is no such key.
	 *
	 * @param key
	 *            A key string.
	 * @param defaultValue
	 *            The default.
	 * @return A string which is the value.
	 */
	public String optString(String key, String defaultValue) {
		Object o = opt(key);
		return o != null ? o.toString() : defaultValue;
	}

	/**
	 * Put a key/boolean pair in the JSONObject.
	 *
	 * @param key
	 *            A key string.
	 * @param value
	 *            A boolean which is the value.
	 * @return this.
	 * @throws JSONException
	 *             If the key is null.
	 */
	public JSONObject put(String key, boolean value) throws JSONException {
		put(key, value ? Boolean.TRUE : Boolean.FALSE);
		return this;
	}

	/**
	 * Put a key/double pair in the JSONObject.
	 *
	 * @param key
	 *            A key string.
	 * @param value
	 *            A double which is the value.
	 * @return this.
	 * @throws JSONException
	 *             If the key is null or if the number is invalid.
	 */
	public JSONObject put(String key, double value) throws JSONException {
		put(key, new Double(value));
		return this;
	}

	/**
	 * Put a key/int pair in the JSONObject.
	 *
	 * @param key
	 *            A key string.
	 * @param value
	 *            An int which is the value.
	 * @return this.
	 * @throws JSONException
	 *             If the key is null.
	 */
	public JSONObject put(String key, int value) throws JSONException {
		put(key, new Integer(value));
		return this;
	}

	/**
	 * Put a key/long pair in the JSONObject.
	 *
	 * @param key
	 *            A key string.
	 * @param value
	 *            A long which is the value.
	 * @return this.
	 * @throws JSONException
	 *             If the key is null.
	 */
	public JSONObject put(String key, long value) throws JSONException {
		put(key, new Long(value));
		return this;
	}

	/**
	 * Put a key/value pair in the JSONObject. If the value is null, then the key
	 * will be removed from the JSONObject if it is present.
	 * 
	 * @param key
	 *            A key string.
	 * @param value
	 *            An object which is the value. It should be of one of these types:
	 *            Boolean, Double, Integer, JSONArray, JSONObject, Long, String, or
	 *            the JSONObject.NULL object.
	 * @return this.
	 * @throws JSONException
	 *             If the value is non-finite number or if the key is null.
	 */
	public JSONObject put(String key, Object value) throws JSONException {
		if (key == null) {
			throw new JSONException("Null key.");
		}
		if (value != null) {
			testValidity(value);
			this.myHashMap.put(key, value);
		} else {
			remove(key);
		}
		return this;
	}

	/**
	 * Put a key/value pair in the JSONObject, but only if the key and the value are
	 * both non-null.
	 * 
	 * @param key
	 *            A key string.
	 * @param value
	 *            An object which is the value. It should be of one of these types:
	 *            Boolean, Double, Integer, JSONArray, JSONObject, Long, String, or
	 *            the JSONObject.NULL object.
	 * @return this.
	 * @throws JSONException
	 *             If the value is a non-finite number.
	 */
	public JSONObject putOpt(String key, Object value) throws JSONException {
		if (key != null && value != null) {
			put(key, value);
		}
		return this;
	}

	/**
	 * Remove a name and its value, if present.
	 * 
	 * @param key
	 *            The name to be removed.
	 * @return The value that was associated with the name, or null if there was no
	 *         value.
	 */
	public Object remove(String key) {
		return this.myHashMap.remove(key);
	}

	/**
	 * Throw an exception if the object is an NaN or infinite number.
	 * 
	 * @param o
	 *            The object to test.
	 * @throws JSONException
	 *             If o is a non-finite number.
	 */
	static void testValidity(Object o) throws JSONException {
		if (o != null) {
			if (o instanceof Double) {
				if (((Double) o).isInfinite() || ((Double) o).isNaN()) {
					throw new JSONException("JSON does not allow non-finite numbers");
				}
			} else if (o instanceof Float) {
				if (((Float) o).isInfinite() || ((Float) o).isNaN()) {
					throw new JSONException("JSON does not allow non-finite numbers.");
				}
			}
		}
	}

	/**
	 * Produce a JSONArray containing the values of the members of this JSONObject.
	 * 
	 * @param names
	 *            A JSONArray containing a list of key strings. This determines the
	 *            sequence of the values in the result.
	 * @return A JSONArray of values.
	 * @throws JSONException
	 *             If any of the values are non-finite numbers.
	 */
	public JSONArray toJSONArray(JSONArray names) throws JSONException {
		if (names == null || names.length() == 0) {
			return null;
		}
		JSONArray ja = new JSONArray();
		for (int i = 0; i < names.length(); i += 1) {
			ja.put(this.opt(names.getString(i)));
		}
		return ja;
	}

	/**
	 * Make an JSON text of this JSONObject. For compactness, no whitespace is
	 * added. If this would not result in a syntactically correct JSON text, then
	 * null will be returned instead.
	 * <p>
	 * Warning: This method assumes that the data structure is acyclical.
	 *
	 * @return a printable, displayable, portable, transmittable representation of
	 *         the object, beginning with <code>{</code>&nbsp;<small>(left
	 *         brace)</small> and ending with <code>}</code>&nbsp;<small>(right
	 *         brace)</small>.
	 */
	public String toString() {
		try {
			Iterator<String> keys = keys();
			StringBuffer sb = new StringBuffer("{");

			while (keys.hasNext()) {
				if (sb.length() > 1) {
					sb.append(',');
				}
				Object o = keys.next();

				sb.append(quote(o.toString(), this.isQuotoName() ? this.getQuotoString() : "", isStrict()));

				sb.append(':');

				Object entryValue = this.myHashMap.get(o);
				if (entryValue instanceof String) {
					sb.append(quote(entryValue.toString(), this.isQuotoValue() ? this.getQuotoString() : "", isStrict()));
				} else {
					sb.append(entryValue.toString());
				}
			}
			sb.append('}');
			return sb.toString();
		} catch (Exception e) {
			return null;
		}
	}

	/**
	 * Test equality of 2 JSON objects. The objects are deemed to be equal if they
	 * contain the same properties
	 * 
	 * @see java.lang.Object#equals(java.lang.Object)
	 *
	 * @param object
	 *            The JSONObject with which to compare to
	 * @return <code>true</code> if this JSONObject is the same as the object
	 *         argument; <code>false</code> otherwise.
	 */
	public boolean equals(Object object) {
		if (object == null) {
			return false;
		}
		JSONObject o = (JSONObject) object;
		return (this.toHashMap().equals(o.toHashMap()));
	}

	/**
	 * Return a hashCode for the JSONObject. This returns the hashcode for the
	 * underlying <code>HashMap</code> that stores the data
	 * 
	 * @see java.lang.Object#hashCode()
	 *
	 * @return a hash code value for this object.
	 */
	public int hashCode() {
		return this.toHashMap().hashCode();
	}

	/**
	 * Get the underlying hash map used to store this JSON Object data
	 *
	 * @return The underlying <code>HashMap</code> object.
	 */
	public HashMap<String, Object> toHashMap() {
		return this.myHashMap;
	}

	public final boolean isAsPrimary() {
		return asPrimary;
	}

	public final void setAsPrimary(boolean asPrimary) {
		this.asPrimary = asPrimary;
	}
}